Wuxi City College of Vocational Technology, Jiangsu, Wuxi 214000, China.
Department of Computer Science, Superior University Lahore, Pakistan.
Comput Math Methods Med. 2021 Dec 6;2021:4360792. doi: 10.1155/2021/4360792. eCollection 2021.
Network interaction has evolved into a grouping paradigm as civilization has progressed and artificial intelligence technology has advanced. This network group model has quickly extended communication space, improved communication content, and tailored to the demands of netizens. The fast growth of the network community on campus can assist students in meeting a variety of communication needs and serve as a vital platform for their studies and daily lives. It is investigated how to extract opinion material from comment text. A strategy for extracting opinion attitude words and network opinion characteristic words from a single comment text is offered at a finer level. The development of a semiautonomous domain emotion dictionary generating technique improves the accuracy of opinion and attitude word extraction. This paper proposes a window-constrained Latent Dirichlet Allocation (LDA) topic model that improves the accuracy of extracting network opinion feature words and ensures that network opinion feature words and opinion attitude words are synchronized by using the location information of opinion attitude words. The two-stage opinion leader mining approach and the linear threshold model based on user roles are the subjects of model simulation tests in this study. It is demonstrated that the two-stage opinion leader mining method suggested in this study can greatly reduce the running time while properly finding opinion leaders with stronger leadership by comparing the results with existing models. It also shows that the linear threshold model based on user roles proposed in this paper can effectively limit the total number of active users who are activated multiple times during the information diffusion process by distinguishing the effects of different user roles on the information diffusion process.
随着文明的进步和人工智能技术的发展,网络交互已经演变成一种分组范式。这种网络群体模型迅速扩展了交流空间,提高了交流内容,并满足了网民的需求。校园网络社区的快速发展可以帮助学生满足各种交流需求,成为他们学习和日常生活的重要平台。本文研究了如何从评论文本中提取观点材料。提出了一种在更细粒度上从单个评论文本中提取观点态度词和网络观点特征词的策略。半自动领域情感词典生成技术的发展提高了观点和态度词提取的准确性。本文提出了一种基于窗口约束的潜在狄利克雷分配(LDA)主题模型,通过使用观点态度词的位置信息,提高了网络观点特征词的提取准确性,并确保网络观点特征词和观点态度词的同步性。模型模拟测试的主题是两阶段意见领袖挖掘方法和基于用户角色的线性阈值模型。通过将结果与现有模型进行比较,表明所提出的两阶段意见领袖挖掘方法可以在适当找到领导能力更强的意见领袖的同时,大大减少运行时间。还表明,本文提出的基于用户角色的线性阈值模型可以通过区分不同用户角色对信息扩散过程的影响,有效地限制信息扩散过程中多次激活的活跃用户总数。